CN100487163C - Wearproof parts of oil mill and their manufacture - Google Patents
Wearproof parts of oil mill and their manufacture Download PDFInfo
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- CN100487163C CN100487163C CNB2004100448669A CN200410044866A CN100487163C CN 100487163 C CN100487163 C CN 100487163C CN B2004100448669 A CNB2004100448669 A CN B2004100448669A CN 200410044866 A CN200410044866 A CN 200410044866A CN 100487163 C CN100487163 C CN 100487163C
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Abstract
A process of preparing wear-resistant wearing part for oil mill. Cover the wearing surface of steely blank with wear-resistant coat made of Ni metal powder and tungsten-carbide powder. The wear-resistant coat is melted in airvoid.
Description
Technical field:
The present invention relates to the surface and have base steel part wear-resisting, corrosion resistance nature, and obtain surface metallurgical technology wear-resisting, corrosion resistance nature at the base steel piece surface.Especially at the wear-resisting consumable accessory in the oil press zhai, as pressing spiral shell, lining ring, cake exit ring, press for extracting juice bar, pressing plate etc.
Background technology:
In the consumable accessory of oil press zhai, generally adopt the soft steel carburizing to increase the hardness and the wear resistance of consumable accessory working face both at home and abroad, prolong its work-ing life, the consumable accessory of this technology can use about half a year on the oil press zhai of 30-40 tons of daily outputs, but wearing and tearing are exceedingly fast when using on the large-scale oil press zhai of 150-300 tons of daily outputs, twenties days at most, as long as three to five days parts promptly wear and tear and scrap, seriously restricted applying of large-scale oil manufacture machine at least.It is low, undesirable with substrate combinating strength that the consumable accessory of employing surfacing, technique for overlaying manufacturing exists alloy layer hardness, and defectives such as pore and crackle are arranged, and engineering is used and is restricted.
Summary of the invention:
The present invention is for the weak point of avoiding above-mentioned prior art to exist, and wear-resisting consumable accessory of a kind of oil press zhai and manufacture method thereof are provided, to prolong parts work-ing life, to reduce use cost.
The technical scheme that technical solution problem of the present invention is adopted is:
The wear-resisting consumable accessory of oil press zhai of the present invention adopts the steel blank, is characterized in having wear-resistant coating on the rapid wear face of described steel blank, and described wear-resistant coating mainly is made of nickel-base alloy powder and tungsten carbide powder, and concrete content is:
Tungsten carbide powder 1Kg, nickel-base alloy powder 5-30Kg.
The characteristics of the wear-resisting consumable accessory manufacture method of oil press zhai of the present invention are between described steel blank and wear-resistant coating, adopt vacuum smelting method, and vacuum tightness is 10-30Pa, Heating temperature is 1030-1080 ℃, soaking time 10-45 minutes after the insulation, cools to 180 ℃ with the furnace and comes out of the stove air cooling promptly.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Adopt the technology of the present invention, the hardness of consumable accessory working face can reach 58-65HRC, does not ftracture, does not come off, low cost of manufacture, long service life, is 5-10 times of traditional carburizing tech finished parts work-ing life.
The drawing explanation:
Fig. 1 is an oil extruder spiral shell structural representation of the present invention.
Fig. 2 is an oil press zhai lining ring structural representation of the present invention.
Fig. 3 is an oil press zhai cake exit ring structural representation of the present invention.
Fig. 4 is an oil extruder bar structural representation of the present invention.
Embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, at oil extruder spiral shell shown in Figure 1, oil press zhai lining ring shown in Figure 2, oil press zhai cake exit ring shown in Figure 3 and oil extruder bar shown in Figure 4, adopt steel blank 1, on the rapid wear face of steel blank 1, have wear-resistant coating 2.
In the present embodiment, wear-resistant coating 2 is made of nickel-base alloy powder and tungsten carbide powder, and concrete content is:
Tungsten carbide powder 1Kg, nickel-base alloy powder 5-30Kg.
In order to improve wear resistance and toughness, can in wear-resistant coating, add rare earth alloy 0.005-0.01Kg, described rare earth alloy is rich cerium alloy mixed powder, ingredient is by weight percentage:
La：26—28、Nd：13—17、Pr：4—8、Fe：≤0.3、
Mg :≤0.05, Mo :≤0.1, C :≤0.05 Ce surplus;
Powder size is-100～+ 280 orders.
The adding of rare earth alloy can increase the service life about 1 times.
In concrete the enforcement, selecting hardness for use is the high rigidity nickel-base alloy powder of 58-65HRC, contains by weight percentage in the nickel-base alloy powder:
C：0.5-1.0、 Cr：14.0-18.0、 Si：3.0-5.0、
Fe:3.0-14.0, B:2.8-3.8, Ni surplus.
The powder size of nickel-base alloy powder and tungsten carbide powder is 140～400 orders.
In the concrete value, tungsten carbide powder content is high more, and alloy layer fragility is big more, cost is high more, wear resistance is good more.
As: in daily output 300T oil press zhai accessory, the weight ratio of tungsten carbide powder and nickel-base alloy powder can value be 1 to 5.
In daily output 150T oil press zhai accessory, the weight ratio of tungsten carbide powder and nickel-base alloy powder can value be 1 to 30.
Concrete procedure of processing is:
A, to the part work surface clean, oil removing and decontamination pre-treatment:
B, modulation slurry and coating: join powder and mixing in proportion, adding is situated between oily as the rosiny pine that contains of binding agent, form slip, slurry is coated on the part clean Surface, the thickness of regulating coat is 0.5-8mm, put into baking oven, dried by the fire 1-3 hours down, accurately shaping by drawing after coming out of the stove at 80-160 ℃;
The amount of the pine Jie oil that is added can be 3%-10% of powder usually.
C, to the oven dry after part carry out vacuum sintering, vacuum tightness is 10-30Pa, Heating temperature is 1030-1080 ℃, soaking time is 10-45 minutes, after the insulation, cools to 180 ℃ with the furnace and comes out of the stove air cooling promptly.
Claims (4)
1, the wear-resisting consumable accessory of oil press zhai adopts steel blank (1), it is characterized in that:
On the rapid wear face of described steel blank (1), have wear-resistant coating (2), described wear-resistant coating (2) mainly is made of nickel-base alloy powder and tungsten carbide powder, and concrete content is: tungsten carbide powder 1Kg, nickel-base alloy powder 5-30Kg;
Contain rare earth alloy 0.005-0.01Kg in described wear-resistant coating (2), described rare earth alloy is rich cerium alloy mixed powder, and ingredient is by weight percentage:
La：26—28、Nd：13—17、Pr：4—8、Fe：≤0.3、
Mg :≤0.05, Mo :≤0.1, C :≤0.05 Ce surplus;
The granularity of rich cerium alloy mixed powder is-100～+ 280 orders;
Contain by weight percentage in the described nickel-base alloy powder:
C：0.5-1.0、Cr：14.0-18.0、Si：3.0-5.0、
Fe:3.0-14.0, B:2.8-3.8, Ni surplus.
2, the wear-resisting consumable accessory of oil press zhai according to claim 1, the powder size that it is characterized in that described nickel-base alloy powder and tungsten carbide powder is 140～400 orders.
3, the wear-resisting consumable accessory manufacture method of the described oil press zhai of a kind of claim 1, it is characterized in that the steel blank of wear-resistant coating is put into the vacuum sintering stove, with the wear-resistant coating vacuum sintering on the rapid wear face of steel blank, adopting the vacuum tightness of vacuum smelting method is 10-30Pa, Heating temperature is 1030-1080 ℃, soaking time is 10-45 minutes, after the insulation, cools to 180 ℃ with the furnace and comes out of the stove air cooling promptly.
4, the wear-resisting consumable accessory manufacture method of oil press zhai according to claim 3 is characterized in that operation as follows before the described vacuum sintering of claim 3:
A, to described steel blank work surface clean, oil removing and decontamination pre-treatment;
B, modulation slurry and coating: join powder and mixing in proportion, adding contains rosiny turps as binding agent, form slip, slurry is coated on described steel blank clean Surface, the thickness of regulating coat is 0.5-8mm, put into baking oven, dried by the fire 1-3 hours down, accurately shaping by drawing after coming out of the stove at 80-160 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100448669A CN100487163C (en) | 2004-05-25 | 2004-05-25 | Wearproof parts of oil mill and their manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100448669A CN100487163C (en) | 2004-05-25 | 2004-05-25 | Wearproof parts of oil mill and their manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1680624A CN1680624A (en) | 2005-10-12 |
| CN100487163C true CN100487163C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100448669A Expired - Fee Related CN100487163C (en) | 2004-05-25 | 2004-05-25 | Wearproof parts of oil mill and their manufacture |
Country Status (1)
| Country | Link |
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| CN (1) | CN100487163C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2740553A1 (en) | 2012-12-07 | 2014-06-11 | Sandvik Intellectual Property AB | Method for manufacture of HIP consolidated component |
| CN103114285B (en) * | 2012-12-28 | 2015-01-07 | 东华大学 | Preparation method of electrical contact strengthened coating on metal surface |
| CN104162676B (en) * | 2014-07-25 | 2016-06-15 | 北京科技大学 | A kind of fracturing pump valve body, valve seat vacuum cladding surface reinforcing method |
| CN104164666B (en) * | 2014-07-31 | 2016-09-28 | 三一重型能源装备有限公司 | The thermally welded method of fracturing pump element and fracturing pump element |
| CN115074659B (en) * | 2022-06-08 | 2024-01-26 | 希诺股份有限公司 | Penetrating agent for local strengthening of surface of thin-wall titanium product and strengthening process thereof |
-
2004
- 2004-05-25 CN CNB2004100448669A patent/CN100487163C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 稀土对真空熔结镍基自熔性合金涂层组织结构的影响. 闵丹，宣天鹏.稀有金属，第28卷第1期. 2004 |
| 稀土对真空熔结镍基自熔性合金涂层组织结构的影响. 闵丹，宣天鹏.稀有金属，第28卷第1期. 2004 * |
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| Publication number | Publication date |
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| CN1680624A (en) | 2005-10-12 |
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Granted publication date: 20090513 Termination date: 20120525 |